Why IP Addressing & Subnetting Matter

IP addressing and subnetting are fundamental skills for any IT professional working with networks. Whether you're preparing for certification exams like Network+ or CCNA, troubleshooting network issues, or designing network infrastructure, understanding how to subnet quickly and accurately is essential.

For many IT professionals, subnetting is one of the most challenging topics to master. This course breaks down complex concepts into simple, easy-to-follow steps that make subnetting accessible to everyone.



Learn by Watching and Doing

This isn't just theory. You'll master subnetting through carefully designed follow-along examples, practical exercises, and real-world scenarios that build your confidence step by step.

  • 6 Hours of Step-by-Step Instruction: Comprehensive coverage from IP addressing basics through advanced scenario-based subnetting.
  • Practice Worksheets with Answer Walk-Throughs: Multiple student practice worksheets for Class C and Class B networks with detailed answer explanations.



  • 4-Page Subnetting Reference Guide: Downloadable reference tables that make subnetting quick and easy, yours to keep and use anytime.
  • Follow-Along Examples: Work through real subnetting scenarios with visual network diagrams showing practical application.
  • Complete Course Materials: Downloadable PDF versions of all lecture slides, worksheets, and reference guides.
  • Lifetime Access: Learn at your own pace with permanent access to all materials and future updates.


What You'll Learn

This course provides complete coverage of IPv4 and IPv6 addressing fundamentals with extensive focus on IPv4 subnetting. Perfect for beginners learning subnetting for the first time and experienced professionals who need a refresher.

IP Addressing Fundamentals

  • IP versus MAC Addresses: Understand the differences between MAC addresses and IP addresses, and why both are equally important in computer networking.
  • Understanding IPv4 Addresses & Binary Math: Learn the anatomy of an IPv4 address and master binary math basics, including converting decimal to binary and vice versa.
  • IPv4 Addresses & Subnet Masks Deep Dive: Explore IP address classification (Class A, B, C), understand subnet masks, learn the powers of 2, distinguish public versus private IP addresses, and understand the loopback address.
  • Introduction to IPv4 Subnetting: Get a high-level overview of what subnetting is, why we use it, and an introduction to the subnetting reference tables that will guide your learning.



Mastering Subnetting

  • Subnetting Class C Networks: Work through three detailed examples with visualizations, then practice with student worksheets and walk-through answer explanations.
  • Subnetting Class B Networks: Master three comprehensive examples including multi-part scenarios, complete practice worksheets with detailed answer walk-throughs.
  • Subnetting Class A Networks: Understand the unique considerations for Class A subnetting through practical examples.
  • Variable Length Subnet Masks (VLSM): Learn this advanced subnetting technique and how to implement VLSM in real networks.
  • Scenario-Based Subnetting: Prepare for certification exams like Network+ and CCNA with four real-world subnetting scenarios complete with worksheet and walk-through solutions.



IPv6 & IP Assignment

  • IPv6 Fundamentals: Understand IPv6 addressing, transmission types, address types, IPv4 to IPv6 translation and compatibility, and the Neighbor Discovery Protocol.
  • Assigning IP Addresses: Learn static versus dynamic IP address assignment, understand IPv4 DHCP and APIPA, and see live demonstrations of configuring DHCP servers and IP assignments on Windows, Mac, and Linux.


What Students Are Saying

"Fantastic. The only person who has managed to explain this to me in a way that makes sense. I have found this EXTREMELY difficult over the years. I am most grateful to you."

— Paul Richards ⭐⭐⭐⭐⭐



"Fantastic. I've spend months trying to get my head around subnetting and this course has been my saviour!"

— James Mucklin ⭐⭐⭐⭐⭐



"Excellent course! After being frustrated with Youtube videos that provided subnetting tricks but no examples of practical application, I am so happy I came across this course. The instructor here not only makes subnetting easy with simple formulas, but he also provides network diagrams where you can see the application of your subnetting exercise. I recommend this course whole-heartedly."

— Jesse J ⭐⭐⭐⭐⭐



"Honestly one of the best subnetting lectures I came across, I saw many many hours of video on YouTube, nothing comes close to this course, worth the money and is a good place to refresh your memory."

— Saif BinAdhed ⭐⭐⭐⭐⭐

Course curriculum

    1. Welcome to the Course

      FREE PREVIEW

    2. Quick Course Overview

      FREE PREVIEW

    3. Why Learn from Me?

    4. Course Lecture PDFs

    1. Section Introduction

      FREE PREVIEW

    2. Introduction to MAC Addresses

      FREE PREVIEW

    3. Introduction to IP Addresses

      FREE PREVIEW

    4. IP versus MAC Addresses

      FREE PREVIEW

    1. Section Introduction

    2. Understanding IPv4 Addresses

    3. Binary Math Basics

    4. Binary Math Student Exercise Worksheet PDF

    1. Section Introduction

    2. IP Address Classification and Subnet Masks

    3. The Power of 2’s

    4. Public versus Private IP Addresses

    5. Public versus Private IP Addresses Visualized

    6. The Loopback IP Address

    1. Section Introduction

    2. Introduction to Subnetting

    3. Subnetting Reference Tables PDF

    1. Section Introduction

    2. Subnetting a Class C Network: Example #1

    3. Subnetting Example #1 Detailed Discussion

    4. Subnetting a Class C Network: Example #2

    5. Subnetting Example #2 Detailed Discussion

    6. Subnetting a Class C Network: Example #3

    7. Subnetting Example #3 Detailed Discussion

    8. Subnetting Class C Networks Student Practice Worksheet

    9. Answers Walk-Through: Student Practice Worksheet

About this course

  • $49.95
  • 66 lessons
  • 6 hours of video content

Your Instructor & The Easy Way Method

About Alton Hardin

Alton Hardin is a former college professor and the founder and lead instructor at Alton Teaches LLC, as well as a bestselling author. He holds two graduate degrees: a Master's of Business Administration (MBA) with a specialization in Information Assurance and Security Management, and a Master's of Science (MS) in Information Technology Network Management.

Alton spent 12 years as a cybersecurity specialist at the U.S. Department of the Treasury, working in governance, risk, and compliance. He holds multiple IT industry certifications, including Certified Information Systems Security Professional (CISSP #740196), ITIL, Security+, Network+, Project+, eLearnSecurity Junior Penetration Tester (eJPT), and several other certifications.

250,000+ students taught across cybersecurity and IT courses. 90,000+ copies sold of his bestselling books.



The Easy Way Method

Subnetting doesn't have to be confusing. This course uses simple formulas, clear visualizations, and progressive examples that build on each other to make subnetting easy to understand and quick to perform.

  • Step-by-Step Examples: Each subnetting example is broken down into manageable steps with clear explanations of why you're doing each calculation.
  • Visual Learning: Network diagrams show you how your subnetting calculations apply to real network designs, connecting theory to practice.



  • Practice Makes Perfect: Multiple worksheets with detailed answer walk-throughs let you practice until subnetting becomes second nature.
  • Certification Prep: Scenario-based subnetting section specifically designed to prepare you for Network+, CCNA, and other certification exams.


Ready to Master Subnetting the Easy Way?

Join 250,000+ students learning essential IT skills. Includes worksheets, reference guides, lifetime access, 14-day money-back guarantee.

Enroll Now

Common Questions

Who is this course for?

This course is designed for aspiring IT professionals, network administrators, students preparing for networking certifications (Network+, CCNA), and anyone who needs to understand IP addressing and subnetting. Whether you're a complete beginner or someone who has struggled with subnetting in the past, this course will help you master it.


Do I need prior networking experience?

You should have a basic understanding of computer networks, but you don't need any prior subnetting experience. Everything is taught from the ground up with clear explanations.


Is this course good for certification prep?

Yes! This course includes scenario-based subnetting exercises specifically designed to prepare you for certification exams like CompTIA Network+ and Cisco CCNA. The subnetting skills you learn here are exactly what you need for these exams.


How long will it take to complete?

The course contains 6 hours of video content across 13 sections. Most students complete it within two to three weeks, but you have lifetime access so you can learn at your own pace and return to practice exercises whenever needed.


What's included with enrollment?

You get 6 hours of video lectures, practice worksheets for Class C and Class B networks with answer walk-throughs, a 4-page subnetting reference guide, scenario-based subnetting exercises, live demonstrations of IP assignment on Windows/Mac/Linux, downloadable PDF versions of all slides, and lifetime access to all materials.


Will I really be able to subnet after this course?

Yes. This course uses a proven step-by-step method with simple formulas and plenty of practice exercises. Students who struggled with subnetting for years have successfully mastered it through this course. The combination of clear instruction, visual diagrams, and extensive practice makes subnetting achievable for everyone.


What if I'm not satisfied?

We offer a 100% satisfaction guarantee. If you are unsatisfied with your purchase, you may request a refund within 14 days of the original purchase date.